Samsung SGH-T259 Series User Manual page 112

From Home screen, press Menu (LSK)
1.
Personalize Phone settings
code.
Select Enable to have the phone prompt you for the PIN
2.
each time you power it on.
– or –
Select Disable to have the phone connect directly to the
network when you power it on.
Press Save (LSK) to store your changes.
3.
Change PIN code
This feature allows you to change your current PIN, provided that
the Check PIN code feature is enabled. You must enter the
current PIN before you can specify a new one.
Note: Pin lock must be enable before using this feature.
Once you enter a new PIN, you are asked to confirm the PIN
number by re-entering it.
From Home screen, press Menu (LSK)
Personalize Phone settings
code.
108
Settings
Security Check PIN
Settings
Security Change PIN
Set FDN mode
FDN (Fixed Dialing Number) mode, if supported by your SIM card,
allows you to restrict your dialed calls to a limited set of phone
numbers.
From Home screen, press Menu (LSK)
1.
Personalize Phone settings
mode.
Choose one of the following options:
2.
– Disable: you can call any number.
– Enable: you can only call phone numbers stored in Contacts. You must
enter your PIN2 code. You can obtain your PIN2 from T-Mobile's
customer service.
Press Save (LSK) to store your changes.
3.
Change PIN2 code
The Change PIN2 feature allows you to change your current PIN2
to a new one. You must first enter the current PIN2 (obtained
from T-Mobile) before you can specify a new one. Once you enter
a new PIN2, you are asked to re-enter the new PIN2 to as
confirmation.
Note: Not all SIM cards have a PIN2. This menu does not display if your SIM
card does not have the PIN2 feature.
Settings
Security Set FDN